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The Firm

About Us

We are a multidisciplinary Firm, integrated by Lawyers trained at the top universities in the United States, Europe and Latin-America and the most renowned law firms of these regions.

We build solid and prosperous relationships with our clients, by offering highly specialized and value-added advice, and by providing clear answers to complex issues.
Gentile Law brings an unmatched level of global legal expertise and knowledge of different legal systems, cultures and sectors, positioning us as the best legal ally for international investors with economic and personal interests in Spain and Portugal.






Gentile Law, was founded by Lucía Goy Mastromiechele, LL.M. from Harvard Law School and Princess of Girona Award, after having worked at firms such as Uría Menéndez and Skadden Arps, with a strong international background. Among other cities, she worked in Madrid, London  and New York. Her global experience and knowledge of different business cultures bring a unique element to the firm  and represented a clear added value for our clients.

Since its beginning as a small legal start-up, and recognized as the best of them in the year of its incorporation by the prestigious economic newspaper Expansión, our Firm has developed into a prestigious law firm that provides comprehensive legal advice, particularly focused on the highest quality of advice to foreign clients investing or with personal interests in Spain and Portugal.

Nuestra Historia

Our beginnings were marked by a steady growth of our client base, as we set out to establish ourselves as the firm for complex international and local tax problems. Recognizing the value of offering full-service advice to clients, we developed complementary practices, such as, Commercial, Corporate, Mergers and acquisitions, Immigration and Foreigners, European Nationalities, Labor, Litigation, Insolvency, Intellectual Property, Data Protection, Family and Inheritance.

In 2020, after identifying the interest and opportunity based on the flexibility of Portuguese residency and citizenship laws, we opened offices in Lisbon to best serve the immigration needs of our clients in this country.

In 2022, in line with our strong international vision and foreign client base, we opened offices in Miami and are looking to opening shortly in México City.

We continue our growth with our clients, motivated by our commitment to excellence, loyalty and results.
We understand and accompany our clients by giving them certainty and confidence.




Our overriding aim is excellence as a law firm.

Therefore, our team is made up of lawyers that have graduated from the top universities (namely Harvard, Georgetown, ICADE, Universidad Autónoma of Madrid and LUISS Guido Carli of Rome) and with extensive experience built working al teading international firms.

Proximity and Loyalty

We build long-lasting relationships. We earn the trust of our clients by rigorously applying the maxims of our office: loyaly, confidentiality and a sicere respect for privacy.

We are committed to providing an honest, close and continuous communication that allows our clients to make well-informed and efficient decisions.


In Gentile Law we firmly believe that the bset possible result is a completely satisfied client. We deliver excellent client service in a cost-effective manner.

Our Goal is to achieve tangible results through agile and efficient processes. We strive to proactively anticipate the needs of our clients and exceed their expectations.

Global Vision

The international professional and personal trajectory of our lawyers, who are  all bilingual, has made our international dimension an inherent part of our practice.

We understand the different cultures of the jurisdictions in which we operate  which enables us to approach each case with a global vision. We operate and where our clients are, which allows them to have a global vision of each matter


Ilustre Colegio de la Abogacia de Madrid MEMBER
Spain-US Chamber of Commerce MEMBER
Spanish-American Bar Association MEMBER
New York Bar Association MEMBER
American International Institute MEMBER
Harvard Club of Spain MEMBER
Asociación Española de Abogados de Familia MEMBER
Consejo Empresarial Alianza por Iberoamérica MEMBER
British Chamber of Commerce in Spain MEMBER
Harvard Club of New York MEMBER
Spanish Chamber of Commerce in Vietnam MEMBER
Cámara de Comercio Hispano Turca MEMBER


Premio Princesa de Girona FPdGi Empresa
Best Lawyer 40 under 40 Iberian Lawyer
Best International Advisory Expert Taxation
Best Lawyer Taxation
Best Legal Start Up Expansión

Social Responsibility

Our profound belief in social responsibility has led us to be deeply involved in social inclusion, development, welfare and social justice activities. In Gentile Law we believe that diversity is the key to progress.

Pro bono work has always been part of our culture, it enriches our profession and contributes to our highest purpose.

Pro Bono

Pro bono legal services with the same excellence that characterizes us.

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Gentile Law has a corporate pro bono program, through which all our professionals provede legal services with the same excellence that characterizes us to people  without resources. Our team always exceeds the minimum requirements for providing a service on a recurring basis.


Among others, we have received the following distinctions:

  • Extraordinary Award for Pro Bono Contribution, New York State Bar Association.
  • Tax Counseling Program, Internal Revenue Service (IRS), U.S Government.
  • Princess of Girona Award, Business, Princess of Girona Foundation


Gentile Law is an active member and recurring donor to multiple non-profit  entities.

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Gentile Law is an active member and recurring donor to multiple non-profit entities. Among others, we are on the board of Trustees of:

  • Fundación Hispano Judía, whose mission is the rapprochement between Hispanic and Jewish cultures; as well as the outreach, fostering and promotion of Jewish culture and promoting intercultural dialogue and the exchange of cultural diversity.
  • Fundación Código Venezuela, is a social welfare organization that offers opportunities to the Venezuelan diaspora in the areas of education, employment and entrepreneurship.

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